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In this case, you can perform an mCheck operation to forcibly transit the port to operation in the
original mode.
For example, Device A, Device B, and Device C are connected in sequence. Device A runs STP,
Device B does not run any spanning tree protocol, and Device C runs RSTP, MSTP, or PVST. When
Device C receives an STP BPDU transparently transmitted by Device B, the receiving port transits to
the STP mode. If you configure Device B to run RSTP, MSTP, or PVST with Device C, perform
mCheck operations on the ports that connect Device B and Device C.
The device operates in STP, RSTP, PVST, or MSTP mode, depending on the spanning tree mode
setting.
The
stp mcheck
command takes effect only when the device operates in MSTP, RSTP, or PVST
mode.
When the setting is configured in Layer 2 Ethernet interface view, it takes effect only on that
interface.
When the setting is configured in Layer 2 aggregate interface view, it takes effect only on the
aggregate interface.
When the setting is configured on a member port in an aggregation group, it takes effect only after
the port leaves the aggregation group.
Examples
# Perform mCheck on GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] stp mcheck
Related commands
•
stp global mcheck
•
stp
mode
stp mode
Use
stp mode
to configure the spanning tree operating mode.
Use
undo stp mode
to restore the default.
Syntax
stp mode
{
mstp
|
pvst
|
rstp
|
stp
}
undo stp mode
Default
A spanning tree device operates in MSTP mode.
Views
System view
Predefined user roles
network-admin
Parameters
mstp
: Configures the spanning tree device to operate in MSTP mode.
pvst
: Configures the spanning tree device to operate in PVST mode.
rstp
: Configures the spanning tree device to operate in RSTP mode.
stp
: Configures the spanning tree device to operate in STP mode.
Summary of Contents for FlexNetwork 5130 HI series
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